Composition — Algebra II, what it means and where it is taught
Running one function on the output of another, written (f ° g)(x) = f(g(x)).
Taught in Algebra II.
Where it is taught
What it rests on
Work through these first if this one does not settle.
- Function — A rule pairing each input with exactly one output.
Practise this idea
1 question in the course bank use Composition, in Inverse Trigonometric Functions.
Problem 1
Evaluate sin(arcsin 0.4).
Worked answer
0.4
0.4 is inside [-1,1], so the composition returns it unchanged